you have your osx setup in raid0 too?
1. which hd is osx installed too
2. if it's only installed on 1 hd then this is the reason it does not work. because your osx is not in raid0
3. if you want to setup a dual boot radi0 you'll have to back up all your data and start from fresh in raid0
4. this is where things become unclear with me I am not sure what type of dual boot you'll have to setup for OSX to work i don't use apple stuff at all.